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Manufacturing method of fluorosilicone rubber material for insulator

A technology of fluorosilicone rubber and manufacturing method, which is applied in the direction of organic insulators and rubber insulators, and can solve the problems of affecting the service life of insulators, reducing the hydrophobicity of materials, and hardening

Inactive Publication Date: 2018-01-30
JIANGSHAN HAIWEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These small molecular polysiloxanes make the surface of silicone rubber obtain hydrophobicity and the production of small molecular polysiloxanes, resulting in poor aging resistance and short service life of silicone rubber materials.
Furthermore, a large amount of aluminum hydroxide is added to the silicone rubber material of the composite insulator as an anti-tracking agent, the addition amount is more than 40%, and the compatibility between aluminum hydroxide and silicone rubber is poor, and it is easy to precipitate during the operation of the insulator. The surface of the shed is whitish and pulverized, which also affects the anti-aging performance of the silicone rubber material
Based on the above, the existing silicone rubber material sheds are prone to aging and damage, which is manifested in the decrease of hydrophobicity, embrittlement, hardening, pulverization, cracking, tracking, dendritic channels, erosion, and hydrophobicity at low temperatures. drop, etc., thus greatly affecting the service life of insulators and seriously threatening the normal operation of the power system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] By weight, 22 parts of fluorine rubber raw rubber, 59 parts of silicone rubber compound, 3 parts of diphenyl silicon glycol, 0.7 parts of trimethylsilyl perrhenate, 0.05 parts of 1,1-dimethyl silicon Hetero-11-crown-4, 0.02 parts of neodymium 1,1-trifluoroacetylacetonate, put them in a vacuum kneader, fully stir to obtain modified silicone rubber;

[0019] According to parts by weight, put the above 100 parts of modified silicone rubber into a vacuum kneader, break up the rubber material, add 33 parts of white carbon black and 2 parts of silicon glycol, stir evenly, and then discharge the material. Use an open rubber mixing machine. After molding, the mixed rubber is prepared and stored and allowed to stand; then, put the stored mixed rubber into an open rubber mixer, and add 123 parts of aluminum hydroxide, 3 parts of zinc oxide, and 0.03 parts of europium oxide according to the proportions. , 2 parts of hydroxy silicone oil and 1 part of vulcanizing agent are put into th...

Embodiment 2

[0021] By weight, 15 parts of fluorine rubber raw rubber, 45 parts of silicone rubber compound rubber, 2 parts of diphenyl silicon glycol, 0.1 part of trimethylsilyl perrhenate, 0.01 part of 1,1-dimethyl silicon Hetero-11-crown-4, 0.01 parts of neodymium 1,1-trifluoroacetylacetonate, put them in a vacuum kneader, fully stir to prepare modified silicone rubber;

[0022] According to parts by weight, put the above 100 parts of modified silicone rubber into a vacuum kneader, break up the rubber material, add 20 parts of white carbon black and 1 part of silicon glycol, stir evenly, and then discharge the material. Use an open rubber mixing machine. After molding, the mixed rubber is prepared and stored and allowed to stand; then, put the stored mixed rubber into an open rubber mixer, and add 100 parts of aluminum hydroxide, 1 part of zinc oxide, and 0.01 parts of europium oxide according to the proportions. , 1 part of hydroxy silicone oil and 0.5 part of vulcanizing agent are put in...

Embodiment 3

[0024] By weight, 35 parts of fluorine rubber raw rubber, 70 parts of silicone rubber compound, 5 parts of diphenyl silicon diol, 1 part of trimethylsilyl perrhenate, 0.1 part of 1,1-dimethyl silicon Hetero-11-crown-4, 0.1 part of neodymium 1,1-trifluoroacetylacetonate, put it in a vacuum kneader and stir it fully to obtain modified silicone rubber;

[0025] According to parts by weight, put the above 100 parts of modified silicone rubber into a vacuum kneader, break the rubber material, add 42 parts of white carbon black and 5 parts of silicon glycol, stir evenly, and then discharge the material. After molding, the mixed rubber is prepared and stored and allowed to stand; then, put the stored mixed rubber into an open rubber mixer, and add 140 parts of aluminum hydroxide, 5 parts of zinc oxide, and 0.1 parts of europium oxide according to the proportions. , 5 parts of hydroxy silicone oil, 3 parts of vulcanizing agent, put them into the vacuum kneader, mix evenly, and then thin ...

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PUM

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Abstract

The invention provides a manufacturing method of a fluorosilicone rubber material for an insulator. The method comprises the following steps in portions by weight: the above 100 portions of modified silicone rubber is put into a vacuum kneader, a glue stock is smashed, 20 to 42 portions of white carbon black and 1 to 5 portions of silicone glycol are added, uniformly stirred and discharged, a rubber compound is obtained after thin-passing and molding by an open mill and put into the open mill, 100 to 140 portions of aluminum hydroxide, 1 to 5 portions of zinc oxide, 0.01 to 0.1 portion of europium oxide, 1 to 5 portions of hydroxyl silicone oil and 0.5 to 3 portions of vulcanizing agent are added according to proportioning and put into the vacuum kneader, and undergo thin-passing and out slice after uniform mixing, and the fluorosilicone rubber material for the composite insulator is obtained.

Description

Technical field [0001] The invention relates to a method for manufacturing an insulator resistant to insulation aging, in particular to a method for manufacturing a fluorosilicone rubber material for insulators. Background technique [0002] Composite insulators are composed of glass fiber core rods, silicone rubber umbrella skirts and connecting fittings. They not only have the advantages of light weight, high mechanical strength, but also excellent pollution resistance. Therefore, they are widely used in power systems. [0003] CN200910110891.5 discloses a silicone rubber material for anti-aging composite insulators and a preparation method thereof. A methyl phenyl silicone resin is added to a 110-2 methyl vinyl silicone rubber matrix, and the introduction of phenyl groups inhibits side groups The oxidation and phenyl form steric hindrance on the silicon-oxygen chain, making the main chain more difficult to degrade, thereby further improving the thermal stability of silicone rubb...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L27/12C08K3/36C08K3/22C08K5/5419H01B3/28
Inventor 刘立忠
Owner JIANGSHAN HAIWEI TECH
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